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Previous Chapter

CHAPTER 11: Enhancing Applications

Index

A

ResourceDetailView

ResourceListView

serialization (see Serialization)

Applied techniques, models

contribute_to_class() method

pickling and unpickling data

storing raw data

unpickling data

configuration options

Augmenting functions

arguments (with or without)

partial application of functions

with extra arguments

decorators;func

excess arguments

argument collections passing

keyword arguments

mixed (positional and keyword) arguments

positional arguments

B

Backend protocols. See also Database access

authenticate(**credentials)

get_user(user_id)

passing information-custom backends

storing user information

base file class

context processors

handling uploads

django.core.files.uploadhander

session management

template loading

load_template_source.is_usable

load_template_source(template_name, template_dirs=None)

load_template(template_name, template_dirs=None)

template loading

C

Class-based views

decorating view methods

django.views.generic.base.View

as_view(cls, **initkwargs)

dispatch(self, request, *args, **kwargs)

individual view methods

__init__(self, **kwargs)

core exceptions (django.core.exceptions)

ImproperlyConfigured

MiddlewareNotUsed

MultipleObjectsReturned

ObjectDoesNotExist

PermissionDenied

SuspiciousOperation

ValidationError

ViewDoesNotExist

data structures (django.utils.datastructures)

functional utilities (django.utils.functional)

allow_lazy(func, *resultclasses)

cached_property(func)

lazy(func, *resultclasses)

lazy_property(fget=None, fset=None, fdel=None)

memoize(func, cache, num_args)

partition(predicate, values)

capturing return values

forcing strong references

listener definition

registering listeners

text modification (django.utils.text)

compress_sequence(sequence)

compress_string(s)

get_text_list(items, last_word=‘or’)

javascript_quote(s, quote_double_quotes=False)

normalize_newlines(text)

phone2numeric(phone)

recapitalize(text)

smart_split(text)

Truncating Text

unescape_entities(text)

unescape_string_literal(s)

wrap(text, width)

admin configuration

contacts.forms.ContactEditorForm

contacts.forms.UserEditorForm

contacts.models.Contact

model inheritance

contacts.views.EditContact

distinct situations

get() and post () method

URL configuration

Coordinating applications See also Contacts

real estate properties

admin configuration

properties.models.Feature

properties.models.InterestedParty

properties.models.Property

properties.models.PropertyFeature

URL configuration

Core exceptions (django.core.exceptions)

ImproperlyConfigured

MiddlewareNotUsed

MultipleObjectsReturned

ObjectDoesNotExist

PermissionDenied

SuspiciousOperation

ValidationError

ViewDoesNotExist

Cross-Origin Resource Sharing (CORS)

function decorator and class mixin

D, E

Database access

django.db.backends

comparison operators

DatabaseWrapper

DatabaseWrapper.features

DatabaseWrapper.ops

structure creation

DatabaseError and IntegrityError

internal column types

Database behavior

db_type(self, connection)

get_db_prep_lookup(self, lookup_type, value, connection, prepared=False)

get_db_prep_value() method

get_db_prep_value(self, value, connection)

get_prep_lookup(self, lookup_type, value)

get_prep_value() method

Data structures (django.utils.datastructures)

Declarative syntax

attribute class

centralized access

Decorating view methods

Django. See also Python

news and resources

reusable applications

documentation reading

version checking

documenting rules

MVC pattern-interpretation

Python distribution

readability counts

Django.db.backends

DatabaseWrapper

DatabaseWrapper.features

DatabaseWrapper.ops

purposes and default behaviors

Don’t Repeat Yourself (DRY)

Duck typing protocols

_call_(self[, . . .])

_contains_(self, key)

_getitem_(self, key)

_setitem_(self, key, value)

read(self, [size])

write(self, str)

_getitem_(self)

_setitem_(self, value)

F, G

File class customization

delete(self, save=True)

open(self, mode=‘rb’)

save(self, name, content, save=True)

ValidationError

field-declare and identify

HTML behavior definition

compress() method

customize, error display

decompress() method

errors_on_seperate_row

markup customization

multiple widgets, data split

MultiValueField

posted data, values

render() method

SplitDateTimeField

value_from_datadict()

techniques applied for

class based approach

decorator module

generic processing

get_form_kwargs()

get_or_create()

pend and resume

user input, bind

behavior control methods

filesystem operation

is_valid() method

trust options of

views, class-based

Frequently Asked Questions (FAQ)

Function-based views

view decorators

name and documentation

Functional utilities (django.utils.functional)

allow_lazy(func, *resultclasses)

cached_property(func)

lazy(func, *resultclasses)

lazy_property(fget=None, fset=None, fdel=None)

memoize(func, cache, num_args)

partition(predicate, values)

H

HTTP middleware

middleware and view decorators

configuration options

MiddlewareClass.process_exception(self, request, exception)

MiddlewareClass.process_request(self, request)

MiddlewareClass.process_response(self, request, response)

MiddlewareClass.process_view(self, request, view, args, kwargs)

HttpRequest.FILES

HttpRequest.GET

HttpRequest.POST

HttpRequest.raw_post_data

HttpRequest.build_absolute_uri(location=None)

HttpRequest.COOKIES

HttpRequest.encoding

HttpRequest.get_full_path()

HttpRequest.get_host()

HttpRequest.get_signed_cookie(key[, . . .])

HttpRequest.is_ajax()

HttpRequest.is_secure()

HttpRequest.META

HttpRequest.method

idempotent methods

HttpRequest.path

Hypertext Transfer Protocol (HTTP). See also HttpRequest

django.core.signals.got_request_exception

django.core.signals.request_finished

django.core.signals.request_started

cookies and security

dictionary access-headers

file-like access-content

HttpResponse.content

HttpResponse.cookies

HttpResponse.delete_cookie(key, path=‘/’ , domain=None)

HttpResponse.set_cookie(key, value=‘’[, . . .])

HttpResponse.set_signed_cookie(key, value, salt=‘’[, . . .])

HttpResponse.status_code

configuration options

MiddlewareClass.process_exception(self, request, exception)

MiddlewareClass.process_request(self, request)

MiddlewareClass.process_response(self, request, response)

MiddlewareClass.process_view(self, request, view, args, kwargs)

view decorators differences

cookies-decorator

middleware tasks

signing outgoing response cookies

validating incoming request cookies

I

Individual view methods

Internet Relay Chat (IRC)

class and function attributes

function signature

object type identification

arbitrary object

J, K, L

JavaScript Object Notation (JSON)

M, N

Models. See also Applied techniques, models

class information

configuration options

field definitions

cusotmization (see File class customization)

delete_file(self, instance, sender)

generate_filename(self, instance, filename)

get_directory_name(self)

get_filename(self, filename)

save_form_data(self, instance, data)

model cache access

application retrieve

Django application

individual models

single application retrieve

primary key fields

processes model classes

declarative syntax

pre_delete and post_delete

pre_init and post_init

pre_save and post_save

standard Python classes

subclass fields

contribute_to_class (self, cls, name)

contribute_to_class() vs. setattr()

contribute_to_related_class(self, cls, related)

database behavior

Django model field

get_internal_type(self)

to_python(self, value)

validate(self, value, instance)

Model-View-Controller (MVC) pattern. See also Function-based views

discrete group serves

URL configuration

O

Object-relational mapper (ORM)

P, Q, R

Patterns() function

augmenting functions

excess arguments

base class, metaclass

declarative syntax

instance creation

programmatically

Python 2 style compatibility

type(), warning

descriptorsconversion of value

_get_(self, instance, owner)

_set_(self, instance, value)

value customize

duck typing protocols

class and function attributes

function signature

object type identification

old style class

plugin architecture

subclasses tracking

Python Enhancement Proposal (PEP)

Python serializer

S

Django’s serialization

dumps() and loads() methods

JSON serializer

serialize() method

api.serializers

end_object(obj)

end_serialization()

get_dump_object()

get_dump_object() method

get_dump_object(obj)

get_through_fields()

handle_field(obj, field)

handle_fk_field() method

handle_fk_field(obj, field)

handle_m2m_field(obj, field)

many-to-many relationships

PropertyFeature model

QuerySetSerializer

retrieve field information

SingleObjectSerializer

start_object(obj)

start_serialization()

T

Techniques, Python

plugin architecture

initialisation of

methods or attributes

subclasses tracking

complex variable lookup

simple variable resolution

vs. namespaces

load and render

render_to_response(template_name, dictionary=None, context_instance=None, content_type=None)

render_to_string(template_name, dictionary=None, context_instance=None)

template_string

Python expressions

render() method

django.template.loader.get_template(template_name)

django.template.loader.select_template(template_name_list)

shortcut (simple tags)

template engine techniques

compilation functions

convert token to string

custom template tag

user-submitted themes techniques

example-application

setting up templates

site-wide themes

validating and securing themes

variable filters

common situations

Text modification (django.utils.text)

compress_sequence(sequence)

compress_string(s)

get_text_list(items, last_word=‘or’)

javascript_quote(s, quote_double_quotes=False)

normalize_newlines(text)

phone2numeric(phone)

recapitalize(text)

smart_split(text)

Truncating Text

Truncator.chars(num, truncate=‘. . . ’)

Truncator.words(num, truncate=‘. . . ’ , html=False)

unescape_entities(text)

unescape_string_literal(s)

wrap(text, width)

U

Uniform Resource Identifiers (URIs). See also Cross-Origin Resource Sharing (CORS)

include() function

multiple arguments

patterns() function

mapping URLs-views

positional vs. keyword arguments

permalink decorator

reverse() utility function

url template tag

V

Views. See Cross-Origin Resource Sharing (CORS)

W, X, Y, Z

Web Server Gateway Interface (WSGI)

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